Multi-stage baffled rain garden system for treating incipient rainwater and its application

Abstract

The invention relates to a multi-stage baffle rain garden system and its application for treating initial rainwater. There is a non-overflow partition wall between the baffle areas, the bottom of the filter area is connected to the bottom of the first-stage baffle area, and an overflow partition is set between the odd-numbered baffle area and the even-numbered baffle area adjacent to the rear end. Wall, a non-overflow partition wall is set between the even-numbered baffle area and the odd-numbered baffle area adjacent to the rear end, the bottom of the even-numbered baffle area is connected to the bottom of the odd-numbered baffle area adjacent to the rear end, and finally An overflow partition wall is set between the stage baffle area and the infiltration reuse area. The system can be applied to parks, residential areas, campuses and urban greening, etc. It can effectively treat the pollutants in the initial rainwater, and at the same time, it can infiltrate the cleaned rainwater into the ground or collect it for reuse, thereby reducing the total amount of runoff. , Reduce the peak runoff, to achieve the purpose of environmental protection and landscape improvement.

Description

technical field [0001] The invention relates to a multi-stage baffle type rain garden system for treating initial rainwater and its application. Background technique [0002] With the continuous acceleration of urbanization, the problems of urban waterlogging, initial rainwater pollution and black and smelly rivers are becoming more and more serious. These problems seriously affect the life and health of residents. The main reason is that due to the rapid development of urbanization, the water system in the city has been continuously reduced, and the coverage of impermeable pavement has gradually increased, resulting in the infiltration of rainfall runoff through the ground, resulting in serious urban waterlogging in the city after the formation of accumulated water. At the same time, due to the serious problem of urban non-point source pollution, the rainwater runoff washing the road surface will also cause the problem of initial rainwater pollution. Some studies have shown...

AI Technical Summary

Problems solved by technology

However, there are still some shortcomings in the traditional rain garden system, such as the serious decline in the treatment effect in cold climates, and even the problem of plant death; after a period of operation, the soil is polluted and compacted, which affects the infiltration effect; the rainwater of the traditional design method The garden’s removal efficiency of pollutants cannot reach a high level; most of the currently published patents are to improve the runoff reduction effect of the rain garden or to transform the landscape effect, and have not effectively strengthened the treatment of nitrogen pollutants in the initial rainwater Treatment means, there is still a problem that the nitrogen pollution content of the effluent is still high

Images